Optysil Mineral Growth Stimulator

OPTYSIL is a liquid antistress agent activating the natural immune systems of plants and stimulating their growth and development. It contains silicon easily absorbed by plants, which strengthens cell walls and stimulates a range of vital processes in the plant.

OPTYSIL is recommended for use in all species of agricultural and horticultural crops, for foliar application. It can also be used during plant irrigation (fertigation, watering). The product has a neutral pH, making it easy to mix with commonly used foliar fertilisers and plant protection products. It is important to apply OPTYSIL preventively – before stress conditions occur.

The main benefits of using the OPTYSIL stimulator include:

• increased tolerance of plants to adverse growing conditions (e.g. drought and other abiotic stresses)
• reduction of biotic stress caused by pathogenic pathogens and/or pest attacks
• stimulation of root growth in young plants
• improvement of yield, quality and storage properties of crops.
  

Ingredients	g/l	% (w/w)
Silicon calculated as SiO2	200	16.5

1. FOLIAR SPRAYS

Apply OPTYSIL foliarly as an aqueous solution. OPTYSIL can be used together with other products after conducting a test confirming compatibility. Test results are available in the INTERMAG agrochemical mixing table tab.

Application timing	Single dose [l/ha]
WHEAT, TRITICALE
autumn: 3rd–6th leaf stage (BBCH 13–16)	0.5
spring: I: winter – tillering (BBCH 22–29)     spring – 3rd leaf stage – tillering (BBCH 13–29)	0.5
II: beginning of stem elongation – beginning of heading (BBCH 30–51)	0.5
III: beginning of heading – beginning of milk grain maturity (BBCH 51–73) (treatments not recommended during BBCH 61–65)	0.5
BARLEY
autumn: 3rd leaf stage – two tillers visible (BBCH 13–22)	0.5
spring: I: winter – beginning of stem elongation – 2nd node at least 2 cm above 1st node (BBCH 30–32)     spring – 3rd leaf stage – 2nd node at least 2 cm above 1st node (BBCH 13–32)	0.5
II: flag leaf stage – late flag leaf sheath swelling stage (BBCH 39–45)	0.5
III: end of flowering – full milk grain maturity (BBCH 69–75)	0.5
RYE
autumn: 3rd leaf stage – two tillers visible (BBCH 13–22)	0.5
spring: I: winter – beginning of stem elongation – 2nd node at least 2 cm above 1st node (BBCH 30–32)     spring – 3rd leaf stage – 2nd node at least 2 cm above 1st node (BBCH 13–32)	0.5
II: flag leaf stage – beginning of heading (BBCH 39–51)	0.5
III: end of flowering – beginning of milk grain maturity (BBCH 69–73)	0.5
OATS
I: 3rd leaf stage – two tillers visible (BBCH 13–22)	0.5
II: beginning of stem elongation – flag leaf stage (BBCH 30–39)	0.5
III: end of flowering – beginning of milk grain maturity (BBCH 69–73)	0.5
OILSEED RAPE
autumn: 4th–8th leaf stage (BBCH 14–18)	0.5
spring: I: after vegetation start: beginning of side shoot development – 6 internodes visible (BBCH 21–36)	0.5
II–III: flower bud development (bud formation) – beginning of flowering (BBCH 50–61), every 5–10 days	0.5
IV: full flowering: 50% open flowers on main inflorescence, older petals falling – initial pod development (BBCH 65–73)	0.5
MAIZE
I: 2nd–6th leaf stage (BBCH 12–16) optimal treatment timing is 4 leaves	0.5
II: leaf development – beginning of stem elongation (shoot elongation) (BBCH 17–31)	0.5
III: stem elongation (shoot elongation) – beginning of tassel development (BBCH 31–51) as long as plant height allows sprayer application	0.5
SUGAR BEET
I: 4th–8th leaf stage (BBCH 14–18)	0.5
II: nine or more leaves – beginning of row closure (BBCH 19–31)	0.5
III: leaves cover 20–50% of soil surface (BBCH 32–35)	0.5
POTATO
I: 3rd–6th leaf developed on main stem (BBCH 13–16)	0.5
II: side shoot development – row closure (BBCH 21–39)	0.5
III–IV: tuber initiation (BBCH 40–49), treatments every 7–14 days	0.5
SOYBEAN
I: leaf and shoot development (BBCH 13–29)	0.5
II: inflorescence development (BBCH 51–59)	0.5
III: beginning of pod development (BBCH 71)	0.5
BEAN and PEA
I: leaf and shoot development (BBCH 15–29)	0.5
II: inflorescence development (BBCH 51–55)	0.5
III: beginning of pod development (BBCH 71-73)	0.5
APPLE TREE, PEAR TREE
I: green bud (BBCH 55–56)	0.5
II: pink/white bud (BBCH 57–59)	0.5
III: flower withering, most petals fallen – end of flowering, all petals fallen (BBCH 67–69)	0.5
IV: fruit formed after flowering reaches up to 10 mm (BBCH 71)	0.5
V: beginning of fruit drop, June drop (BBCH 73)	0.5
VI: fruit reaches approx. 50% of typical size (BBCH 75)	0.5
SWEET CHERRY, SOUR CHERRY
I: green bud (BBCH 55)	0.5
II: white bud (BBCH 57–59)	0.5
III: flower withering, most petals fallen – end of flowering (BBCH 67–69)	0.5
IV–V: fruit development (BBCH 71–79), every 14–21 days	0.5
PLUM TREE, PEACH, APRICOT
I: green bud (BBCH 55)	0.5
II: white bud (BBCH 57–59)	0.5
III: flower withering, most petals fallen – end of flowering (BBCH 67–69)	0.5
IV–V: fruit development (BBCH 71–79) every 14–21 days	0.5
VI: advanced fruit colouring (BBCH 85)